Enter a weight and get the number of helium balloons needed to lift it. Each balloon lifts about 14 grams. Useful for parties, science projects, or just curiosity. Tells you how many balloons to lift a pound, checks helium balloon weight capacity, and estimates balloons needed for house lift ideas.
🎈 Balloon House Lifting Calculator
Archimedes' Principle • Ideal Gas Law • Atmospheric Conditions
House Specifications
Enter the actual mass of the house.
Balloon Configuration
Spherical balloon: V = (4/3) × π × r³
Higher values provide additional lifting capacity.
Environmental Conditions
Atmospheric pressure is adjusted for altitude.
Ambient temperature used for air and lifting-gas density.
Humidity affects the density of ambient air.
Additional Parameters
Mass of the balloon envelope per balloon.
Additional mass carried by the balloons.
📊 Lift Analysis Results
Total Mass
—
Balloons Needed
—
Net Lift / Balloon
—
Total Lift
—
🌍 Real-World Scale
Enter your values and click Calculate.
🔬 Technical Details
Atmospheric Pressure
—
Air Density
—
Gas Density
—
Density Difference
—
Balloon Volume
—
Gross Buoyant Force
—
Net Lift
—
Total Balloon Volume
—
Safety Factor
—
📐 Formula Used
Balloon Volume = (4/3) × π × r³
Buoyant Force = (ρair − ρgas) × V × g
Net Lift = Buoyant Force ÷ g − Balloon Mass
Required Lift = (House Mass + Payload) × Safety Factor
Balloons Needed = Ceiling(Required Lift ÷ Net Lift per Balloon)
Visit related:
Balloons for house lifting calculator
Force calculator